Cables clamp into the controller at the Arrow. Clamps that allow the operator to grab and control the cables. There is a notch in each side of the clamps to allow one of the cables through, while trapping the other one. The screws are backed out using a hex key. Cables are brought in from where the ferrules are screwed in, and slipped through the cable clamps. Center the controller while tightening down on the clamps. Adjust the cables to hand tight, but that's all. Face this side towards the animal. The third rotation cable is fed from below the spindle cluster.